Aftermarket Nikko New 24 Volt 50 Amp Clockwise Alternator w/ 2 Groove Pulley. John Deere Excavator 75D 85D Isuzu 4LE2X. Voltage: 24 Amps: 50 Condition: New Mtg Ear 1 Hole: 8.5mm Unthreaded Mtg Ear 2 Hole: 10.5mm Unthreaded Mtg Ear 3 Hole: 10.5mm Unthreaded Fan Location: External Regulator Location: Internal B+ Terminal: M6-1.0 Pulley Grooves: 2 Pulley Type: Solid Pulley OD: 3.228in / 82mm. Powered by SixBit’s eCommerce Solution.